Finding the Fourth Proportional to 99,468.02, 137,268.42 and 61,213.34

Step by Step Solution

1. Step 1: Write the proportion equation
   99,468.02 : 137,268.42 = 61,213.34 : x
2. Step 2: Convert to fraction form
   99,468.02/137,268.42 = 61,213.34/x
3. Step 3: Cross multiply
   99,468.02x = 137,268.42 × 61,213.34
4. Step 4: Simplify right side
   99,468.02x = 8,402,658,464.72
5. Step 5: Solve for x
   x = 8,402,658,464.72/99,468.02
6. Step 6: Final answer
   x = 84,475.98