Finding the Fourth Proportional to 101,064, 139,466.43 and 55,746.21

Step by Step Solution

1. Step 1: Write the proportion equation
   101,064 : 139,466.43 = 55,746.21 : x
2. Step 2: Convert to fraction form
   101,064/139,466.43 = 55,746.21/x
3. Step 3: Cross multiply
   101,064x = 139,466.43 × 55,746.21
4. Step 4: Simplify right side
   101,064x = 7,774,724,894.73
5. Step 5: Solve for x
   x = 7,774,724,894.73/101,064
6. Step 6: Final answer
   x = 76,928.73