Finding the Fourth Proportional to 118,931.68, 164,211.82 and 76,564.02

Step by Step Solution

1. Step 1: Write the proportion equation
   118,931.68 : 164,211.82 = 76,564.02 : x
2. Step 2: Convert to fraction form
   118,931.68/164,211.82 = 76,564.02/x
3. Step 3: Cross multiply
   118,931.68x = 164,211.82 × 76,564.02
4. Step 4: Simplify right side
   118,931.68x = 12,572,717,070.72
5. Step 5: Solve for x
   x = 12,572,717,070.72/118,931.68
6. Step 6: Final answer
   x = 105,713.78