Finding the Fourth Proportional to 12,013,807.82, 18,020,520.84 and 2,915,980.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,013,807.82 : 18,020,520.84 = 2,915,980.70 : x
2. Step 2: Convert to fraction form
   12,013,807.82/18,020,520.84 = 2,915,980.70/x
3. Step 3: Cross multiply
   12,013,807.82x = 18,020,520.84 × 2,915,980.70
4. Step 4: Simplify right side
   12,013,807.82x = 52,547,490,973,387.79
5. Step 5: Solve for x
   x = 52,547,490,973,387.79/12,013,807.82
6. Step 6: Final answer
   x = 4,373,924.72