Finding the Fourth Proportional to 12,878,116.72, 17,767,925.48 and 7,719,596.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,878,116.72 : 17,767,925.48 = 7,719,596.08 : x
2. Step 2: Convert to fraction form
   12,878,116.72/17,767,925.48 = 7,719,596.08/x
3. Step 3: Cross multiply
   12,878,116.72x = 17,767,925.48 × 7,719,596.08
4. Step 4: Simplify right side
   12,878,116.72x = 137,161,207,885,140.12
5. Step 5: Solve for x
   x = 137,161,207,885,140.12/12,878,116.72
6. Step 6: Final answer
   x = 10,650,719.42