Finding the Fourth Proportional to 59,970.78, 83,109.72 and 59,125.14

Step by Step Solution

1. Step 1: Write the proportion equation
   59,970.78 : 83,109.72 = 59,125.14 : x
2. Step 2: Convert to fraction form
   59,970.78/83,109.72 = 59,125.14/x
3. Step 3: Cross multiply
   59,970.78x = 83,109.72 × 59,125.14
4. Step 4: Simplify right side
   59,970.78x = 4,913,873,830.36
5. Step 5: Solve for x
   x = 4,913,873,830.36/59,970.78
6. Step 6: Final answer
   x = 81,937.80