Finding the Fourth Proportional to 13,061,430.18, 19,594,510.08 and 5,380,806.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061,430.18 : 19,594,510.08 = 5,380,806.78 : x
2. Step 2: Convert to fraction form
   13,061,430.18/19,594,510.08 = 5,380,806.78/x
3. Step 3: Cross multiply
   13,061,430.18x = 19,594,510.08 × 5,380,806.78
4. Step 4: Simplify right side
   13,061,430.18x = 105,434,272,689,242.34
5. Step 5: Solve for x
   x = 105,434,272,689,242.34/13,061,430.18
6. Step 6: Final answer
   x = 8,072,184.38