Finding the Fourth Proportional to 99,870.42, 149,625.12 and 62,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,870.42 : 149,625.12 = 62,412.50 : x
2. Step 2: Convert to fraction form
   99,870.42/149,625.12 = 62,412.50/x
3. Step 3: Cross multiply
   99,870.42x = 149,625.12 × 62,412.50
4. Step 4: Simplify right side
   99,870.42x = 9,338,477,802
5. Step 5: Solve for x
   x = 9,338,477,802/99,870.42
6. Step 6: Final answer
   x = 93,505.94