Finding the Fourth Proportional to 16,638,972.27, 25,072,031.63 and 13,672,784.13

Step by Step Solution

1. Step 1: Write the proportion equation
   16,638,972.27 : 25,072,031.63 = 13,672,784.13 : x
2. Step 2: Convert to fraction form
   16,638,972.27/25,072,031.63 = 13,672,784.13/x
3. Step 3: Cross multiply
   16,638,972.27x = 25,072,031.63 × 13,672,784.13
4. Step 4: Simplify right side
   16,638,972.27x = 342,804,476,109,158.12
5. Step 5: Solve for x
   x = 342,804,476,109,158.12/16,638,972.27
6. Step 6: Final answer
   x = 20,602,503.00