Finding the Fourth Proportional to 375,670,874.00, 518,426,416.00 and 208,407,139.55

Step by Step Solution

1. Step 1: Write the proportion equation
   375,670,874.00 : 518,426,416.00 = 208,407,139.55 : x
2. Step 2: Convert to fraction form
   375,670,874.00/518,426,416.00 = 208,407,139.55/x
3. Step 3: Cross multiply
   375,670,874.00x = 518,426,416.00 × 208,407,139.55
4. Step 4: Simplify right side
   375,670,874.00x = 108,043,766,422,084,176
5. Step 5: Solve for x
   x = 108,043,766,422,084,176/375,670,874.00
6. Step 6: Final answer
   x = 287,602,190.91