Finding the Fourth Proportional to 99,499.32, 149,092.65 and 69,483.96

Step by Step Solution

1. Step 1: Write the proportion equation
   99,499.32 : 149,092.65 = 69,483.96 : x
2. Step 2: Convert to fraction form
   99,499.32/149,092.65 = 69,483.96/x
3. Step 3: Cross multiply
   99,499.32x = 149,092.65 × 69,483.96
4. Step 4: Simplify right side
   99,499.32x = 10,359,547,728.89
5. Step 5: Solve for x
   x = 10,359,547,728.89/99,499.32
6. Step 6: Final answer
   x = 104,116.77