Finding the Fourth Proportional to 42,053,124.50, 63,090,340.93 and 12,908,441.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,053,124.50 : 63,090,340.93 = 12,908,441.09 : x
2. Step 2: Convert to fraction form
   42,053,124.50/63,090,340.93 = 12,908,441.09/x
3. Step 3: Cross multiply
   42,053,124.50x = 63,090,340.93 × 12,908,441.09
4. Step 4: Simplify right side
   42,053,124.50x = 814,397,949,416,782.12
5. Step 5: Solve for x
   x = 814,397,949,416,782.12/42,053,124.50
6. Step 6: Final answer
   x = 19,365,932.00