Finding the Fourth Proportional to 10,070.72, 13,897.12 and 5,594.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,070.72 : 13,897.12 = 5,594.40 : x
2. Step 2: Convert to fraction form
   10,070.72/13,897.12 = 5,594.40/x
3. Step 3: Cross multiply
   10,070.72x = 13,897.12 × 5,594.40
4. Step 4: Simplify right side
   10,070.72x = 77,746,048.13
5. Step 5: Solve for x
   x = 77,746,048.13/10,070.72
6. Step 6: Final answer
   x = 7,720.01