Finding the Fourth Proportional to 89,927.90, 124,071.02 and 64,090.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,927.90 : 124,071.02 = 64,090.52 : x
2. Step 2: Convert to fraction form
   89,927.90/124,071.02 = 64,090.52/x
3. Step 3: Cross multiply
   89,927.90x = 124,071.02 × 64,090.52
4. Step 4: Simplify right side
   89,927.90x = 7,951,776,188.73
5. Step 5: Solve for x
   x = 7,951,776,188.73/89,927.90
6. Step 6: Final answer
   x = 88,423.91