Finding the Fourth Proportional to 10,902,111.60, 16,349,230.80 and 5,508,969.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,902,111.60 : 16,349,230.80 = 5,508,969.60 : x
2. Step 2: Convert to fraction form
   10,902,111.60/16,349,230.80 = 5,508,969.60/x
3. Step 3: Cross multiply
   10,902,111.60x = 16,349,230.80 × 5,508,969.60
4. Step 4: Simplify right side
   10,902,111.60x = 90,067,415,460,583.67
5. Step 5: Solve for x
   x = 90,067,415,460,583.67/10,902,111.60
6. Step 6: Final answer
   x = 8,261,465.19