Finding the Fourth Proportional to 12,892,109.48, 17,791,447.72 and 7,091,043.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,892,109.48 : 17,791,447.72 = 7,091,043.50 : x
2. Step 2: Convert to fraction form
   12,892,109.48/17,791,447.72 = 7,091,043.50/x
3. Step 3: Cross multiply
   12,892,109.48x = 17,791,447.72 × 7,091,043.50
4. Step 4: Simplify right side
   12,892,109.48x = 126,159,929,710,495.81
5. Step 5: Solve for x
   x = 126,159,929,710,495.81/12,892,109.48
6. Step 6: Final answer
   x = 9,785,825.19