Finding the Fourth Proportional to 102,978.27, 142,036.62 and 94,507.74

Step by Step Solution

1. Step 1: Write the proportion equation
   102,978.27 : 142,036.62 = 94,507.74 : x
2. Step 2: Convert to fraction form
   102,978.27/142,036.62 = 94,507.74/x
3. Step 3: Cross multiply
   102,978.27x = 142,036.62 × 94,507.74
4. Step 4: Simplify right side
   102,978.27x = 13,423,559,953.44
5. Step 5: Solve for x
   x = 13,423,559,953.44/102,978.27
6. Step 6: Final answer
   x = 130,353.33