Finding the Fourth Proportional to 99,085.77, 148,656.24 and 39,907.62

Step by Step Solution

1. Step 1: Write the proportion equation
   99,085.77 : 148,656.24 = 39,907.62 : x
2. Step 2: Convert to fraction form
   99,085.77/148,656.24 = 39,907.62/x
3. Step 3: Cross multiply
   99,085.77x = 148,656.24 × 39,907.62
4. Step 4: Simplify right side
   99,085.77x = 5,932,516,736.55
5. Step 5: Solve for x
   x = 5,932,516,736.55/99,085.77
6. Step 6: Final answer
   x = 59,872.54