Finding the Fourth Proportional to 78,188.00, 107,899.38 and 42,377.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,188.00 : 107,899.38 = 42,377.99 : x
2. Step 2: Convert to fraction form
   78,188.00/107,899.38 = 42,377.99/x
3. Step 3: Cross multiply
   78,188.00x = 107,899.38 × 42,377.99
4. Step 4: Simplify right side
   78,188.00x = 4,572,558,307.15
5. Step 5: Solve for x
   x = 4,572,558,307.15/78,188.00
6. Step 6: Final answer
   x = 58,481.59