Finding the Fourth Proportional to 13,153,117.88, 19,590,980.86 and 12,562,969.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,153,117.88 : 19,590,980.86 = 12,562,969.34 : x
2. Step 2: Convert to fraction form
   13,153,117.88/19,590,980.86 = 12,562,969.34/x
3. Step 3: Cross multiply
   13,153,117.88x = 19,590,980.86 × 12,562,969.34
4. Step 4: Simplify right side
   13,153,117.88x = 246,120,891,884,706.81
5. Step 5: Solve for x
   x = 246,120,891,884,706.81/13,153,117.88
6. Step 6: Final answer
   x = 18,711,981.00