Finding the Fourth Proportional to 314,980.16, 472,472.01 and 78,322.86

Step by Step Solution

1. Step 1: Write the proportion equation
   314,980.16 : 472,472.01 = 78,322.86 : x
2. Step 2: Convert to fraction form
   314,980.16/472,472.01 = 78,322.86/x
3. Step 3: Cross multiply
   314,980.16x = 472,472.01 × 78,322.86
4. Step 4: Simplify right side
   314,980.16x = 37,005,359,093.15
5. Step 5: Solve for x
   x = 37,005,359,093.15/314,980.16
6. Step 6: Final answer
   x = 117,484.73