Finding the Fourth Proportional to 67,689,547.10, 93,499,198.59 and 55,976,129.21

Step by Step Solution

1. Step 1: Write the proportion equation
   67,689,547.10 : 93,499,198.59 = 55,976,129.21 : x
2. Step 2: Convert to fraction form
   67,689,547.10/93,499,198.59 = 55,976,129.21/x
3. Step 3: Cross multiply
   67,689,547.10x = 93,499,198.59 × 55,976,129.21
4. Step 4: Simplify right side
   67,689,547.10x = 5,233,723,220,837,794
5. Step 5: Solve for x
   x = 5,233,723,220,837,794/67,689,547.10
6. Step 6: Final answer
   x = 77,319,518.96