Finding the Fourth Proportional to 99,960.59, 149,967.18 and 35,925.21

Step by Step Solution

1. Step 1: Write the proportion equation
   99,960.59 : 149,967.18 = 35,925.21 : x
2. Step 2: Convert to fraction form
   99,960.59/149,967.18 = 35,925.21/x
3. Step 3: Cross multiply
   99,960.59x = 149,967.18 × 35,925.21
4. Step 4: Simplify right side
   99,960.59x = 5,387,601,594.96
5. Step 5: Solve for x
   x = 5,387,601,594.96/99,960.59
6. Step 6: Final answer
   x = 53,897.26