Finding the Fourth Proportional to 64,900.06, 88,360.65 and 64,700.14

Step by Step Solution

1. Step 1: Write the proportion equation
   64,900.06 : 88,360.65 = 64,700.14 : x
2. Step 2: Convert to fraction form
   64,900.06/88,360.65 = 64,700.14/x
3. Step 3: Cross multiply
   64,900.06x = 88,360.65 × 64,700.14
4. Step 4: Simplify right side
   64,900.06x = 5,716,946,436.81
5. Step 5: Solve for x
   x = 5,716,946,436.81/64,900.06
6. Step 6: Final answer
   x = 88,088.46