Finding the Fourth Proportional to 98,978.28, 136,612.32 and 83,035.04

Step by Step Solution

1. Step 1: Write the proportion equation
   98,978.28 : 136,612.32 = 83,035.04 : x
2. Step 2: Convert to fraction form
   98,978.28/136,612.32 = 83,035.04/x
3. Step 3: Cross multiply
   98,978.28x = 136,612.32 × 83,035.04
4. Step 4: Simplify right side
   98,978.28x = 11,343,609,455.69
5. Step 5: Solve for x
   x = 11,343,609,455.69/98,978.28
6. Step 6: Final answer
   x = 114,607.06