Finding the Fourth Proportional to 12,316,890.88, 18,473,159.04 and 3,342,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,316,890.88 : 18,473,159.04 = 3,342,142.72 : x
2. Step 2: Convert to fraction form
   12,316,890.88/18,473,159.04 = 3,342,142.72/x
3. Step 3: Cross multiply
   12,316,890.88x = 18,473,159.04 × 3,342,142.72
4. Step 4: Simplify right side
   12,316,890.88x = 61,739,934,000,938.19
5. Step 5: Solve for x
   x = 61,739,934,000,938.19/12,316,890.88
6. Step 6: Final answer
   x = 5,012,623.28