Finding the Fourth Proportional to 21,059,366.98, 31,590,978.27 and 5,913,196.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,059,366.98 : 31,590,978.27 = 5,913,196.42 : x
2. Step 2: Convert to fraction form
   21,059,366.98/31,590,978.27 = 5,913,196.42/x
3. Step 3: Cross multiply
   21,059,366.98x = 31,590,978.27 × 5,913,196.42
4. Step 4: Simplify right side
   21,059,366.98x = 186,803,659,610,461.78
5. Step 5: Solve for x
   x = 186,803,659,610,461.78/21,059,366.98
6. Step 6: Final answer
   x = 8,870,335.93