Finding the Fourth Proportional to 78,547.50, 108,394.74 and 46,715.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,547.50 : 108,394.74 = 46,715.72 : x
2. Step 2: Convert to fraction form
   78,547.50/108,394.74 = 46,715.72/x
3. Step 3: Cross multiply
   78,547.50x = 108,394.74 × 46,715.72
4. Step 4: Simplify right side
   78,547.50x = 5,063,737,781.34
5. Step 5: Solve for x
   x = 5,063,737,781.34/78,547.50
6. Step 6: Final answer
   x = 64,467.20